Increase the size of segment

I want to decrease the size (geometry) of a segment and in the same time i want to keep the relations between the surface of another segment. How can i do that??

You can use specify geometry button in Segment Editor module to modify the extent.

i can’t find this button. I have the 5.4.0 version

I think the feature was already available in Slicer-5.4, but I’m not sure. Please use the latest Slicer Stable Release or latest Slicer Preview Release, as they contain lots of fixes and improvements.